Rubber & Plastics

Metallic stearates are compounds of long-chain fatty acids with metals of different valencies. The most important metallic stearates, in terms of quantity, are the metallic stearates of aluminum, calcium, magnesium, and zinc. Applications are widely varied. They are used for their lubricating properties, separating properties, water repellence, gelling capacity, stabilizing effect, foam inhibition, acid scavenging effect, and more.

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Zinc Stearate

Zinc stearate is a fine, creamy-white powder. It is the zinc salt of stearic acid. It is insoluble in water, alcohol and ether. It dissolves well in aromatic compounds like benzene and chlorinated hydrocarbons on heating. In fact, zinc stearate is strongly hydrophobic.

Zinc stearate is widely used as a binder, release agent, lubricant and vulcanization activator in the rubber and tire industry.